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Posted to dev@apex.apache.org by "Aayushi Acharya (JIRA)" <ji...@apache.org> on 2016/07/11 22:48:10 UTC

[jira] [Created] (APEXMALHAR-2139) UniqueCounter changes

Aayushi Acharya created APEXMALHAR-2139:
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             Summary: UniqueCounter changes
                 Key: APEXMALHAR-2139
                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-2139
             Project: Apache Apex Malhar
          Issue Type: Improvement
            Reporter: Aayushi Acharya
             Fix For: 3.5.0


1.Update the unique counter operator from Malhar https://github.com/apache/apex-malhar/blob/master/library/src/main/java/com/datatorrent/lib/algo/UniqueCounter.java to emit one tuple at a time vs dumping a map.
2.Emit only the keys for which values changed or were added in a given window.
3.Add test cases for 1 and 2.



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